20170113-JleicIonIntegration

Jan 13 2017 JLEIC Ion Integration Meeting (and Notes)

Parameter Updates

• Yuhong presented a strong cooling parameter update at the Jan 12 2017 JLEIC R&D Meeting.
• This included some substantial impacts on a broad set of parameters for JLEIC.
• Rui is also starting to develop a work and priority plan for impedances/instabilities this calendar year.
• Discuss and set out objectives for next few months:
  • Parameter updates at the baseline parameters wiki page
  • Include derived quantity spreadsheets for input to impedances/instabilities, c.f. ion linac parameters spreadsheet.
  • These can be placeholders/skeletons as we start filling in things, but will identify parameters that we need to define.

Ion Source R&D at LBNL

• Mike was at LBNL for an 88-inch cyclotron ops review this past week
  • Link to review slides etc.
• One item worth noting is their ECRIS ion source R&D for VENUS and MARS.
• We will briefly discuss any possible implications. Note that Amy came to us from LBL!

AOB

• Last meeting we noted the following -- progress?
  • Yves is working with Rui and others to start developing an impedance budget -- progress?
    • This partly uses ZAP for some calculations, but some calculations (e.g. IR region beampipe) require calculations with approximate expected geometry.
    • Todd is also concerned about BPM designs for the collider ring with long and short bunches (before and after splitting).
    • Vasiliy noted that Roman Pots in the ion collider ring at <math>\approx 10\sigma</math> may also have significant impedance impact.
    • Tim notes that an engineering team is starting to assemble to evaluate integration needs, e.g. power supply/magnets. BPM and instrumentation design may be part of this.

Reference Materials

• JLEIC Fall 2016 Collaboration Meeting (Oct 5-7 2016, InDiCo)
• JLEIC svn repository

Attendance

• TBD